Climate averages 1991–2020
Gdańsk weather
in May.
A mild, moderately wet month: the 5th warmest and the 9th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a mild month in Gdańsk: daytime highs average 16.7°C and nights cool to about 8.1°C. By daytime temperature it is the 5th warmest of the 12 months.
Expect about 59 mm of rain on roughly 11 days, which makes May a moderately wet month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 16 h 00 min on an average May day.
The nearest other city in this atlas is Gdynia (20 km away). In May its highs average 16.3°C, about as warm as Gdańsk, with 62 mm of rain.
Among the 60 cities listed in Poland, Gdańsk ranks 55th of 60 for the warmest May highs and joint 16th of 60 for the driest May (rainfall, lowest first). The mean May high of those 60 cities is 18.1°C; Gdańsk is 1.4°C cooler than that mean.
From May to June, average highs rise by 3.3°C to 20.1°C, and monthly rainfall rises from 59 mm to 67 mm.
The annual picture
May in context
Monthly precipitation
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Gdańsk climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 1.6°C-2.2°C | -2.2°C | 35 | 10.0 | 8.08 h |
| February | 2.5°C-2.1°C | -2.1°C | 29 | 8.5 | 9.710 h |
| March | 6.2°C-0.2°C | -0.2°C | 36 | 10.0 | 11.812 h |
| April | 11.9°C3.5°C | 3.5°C | 40 | 9.6 | 14.014 h |
| May, selected | 16.7°C8.1°C | 8.1°C | 59 | 11.3 | 16.016 h |
| June | 20.1°C12.1°C | 12.1°C | 67 | 12.4 | 17.117 h |
| July | 22.3°C14.8°C | 14.8°C | 84 | 12.9 | 16.617 h |
| August | 22.3°C14.8°C | 14.8°C | 69 | 12.0 | 14.915 h |
| September | 17.8°C11.4°C | 11.4°C | 51 | 9.3 | 12.813 h |
| October | 12.2°C7.0°C | 7.0°C | 46 | 10.1 | 10.611 h |
| November | 6.7°C2.9°C | 2.9°C | 37 | 9.2 | 8.69 h |
| December | 3.0°C-0.6°C | -0.6°C | 40 | 9.7 | 7.47 h |
Precipitation (rain or snow, as water) is the average of the 30 separate monthly totals. A wet day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
May in nearby cities
- Gdynia in MayPoland · 20 kmHigh 16.3°C · Low 8.2°C · 62 mm rain
- Elbląg in MayPoland · 54 kmHigh 16.6°C · Low 8.7°C · 57 mm rain
- Grudziądz in MayPoland · 97 kmHigh 17.9°C · Low 8.6°C · 62 mm rain
- Słupsk in MayPoland · 106 kmHigh 15.4°C · Low 8.1°C · 56 mm rain
- Kaliningrad in MayRussia · 126 kmHigh 17.5°C · Low 8.2°C · 58 mm rain
- Olsztyn in MayPoland · 136 kmHigh 17.2°C · Low 7.8°C · 64 mm rain
- Fordon in MayPoland · 138 kmHigh 18.2°C · Low 8.9°C · 60 mm rain
- Bydgoszcz in MayPoland · 143 kmHigh 18.4°C · Low 8.8°C · 58 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Gdańsk) is explained once on the Gdańsk year overview and on the Sources, method and limits page.